There are only so many backups they can use at once. And the more you put in there, the more you are exposing your remaining starters by forcing them to play with lesser players. You only get 45 actives, and WR, TE, RB, DL and DB all use some sort of rotation already. And most of those guys all play special teams as well. What do you do, take out Urlacher, Forte, Cutler, Briggs, Peppers, Tillman, Hester and Knox? I'd take Cutler and Forte out. Reduce snaps on Urlacher, Briggs, and Peppers if not take them out completely. Take Hester and Knox off of returns. Bennett is gimped right now so they probably have to play receiver. Edit: 98% of my concern would be alleviated if Cutler were taken out. Let him get reps in a crazy/loud environment to give him a taste of playoff football and then take him out. I'll trust Lovie to manage everyone else's snaps properly.